Boxster S (986) F6-3.2L (2001)
Overview of Porsche wheels for winter tires.
Fastening Spacer Ring/Wheel:
The 5 mm thick spacer rings are mounted on the wheel hubs together with the brake discs using longer countersunk screws (M6x16), P/N: 900 269 106
09.
Tightening torque: 10 Nm (7.5 ft-lb.).
The 5 mm spacer ring must remain on the vehicle when mounting the spare wheel.